Merge branch SRB2:next into interpolate-shield-spawning

.gitattributes

.gitlab-ci.yml

CMakeLists.txt

appveyor.yml

comptime.bat

comptime.sh

src/CMakeLists.txt

src/Makefile

src/Makefile.d/features.mk

src/Makefile.d/versions.mk

src/Sourcefile

src/b_bot.c

src/blua/lbaselib.c

src/command.c

src/console.c

src/d_event.h

src/d_main.c

src/d_player.h

src/d_think.h

src/d_ticcmd.h